function ConnectionTest(id,params)
    local result, test = sscanf(params,"d")
    if result == 1 then
        if test == 1 then
            SendPlayerMessage(id,255,255,255,string.format("Your IP : %s", GetPlayerIP(id)));
        elseif test == 2 then
            SendPlayerMessage(id,255,255,255,string.format("Your MAC : %s", GetMacAddress(id)));
        else
            SendPlayerMessage(id,255,255,255,string.format("Your GMP name : %s", GMPName[id]));
        end
    else
        SendPlayerMessage(id,255,255,255,string.format("Your GMP name : %s", GMPName[id]));
    end
end